2026-05-12
Best Watch Straps for the Citizen Nighthawk
The Citizen Nighthawk occupies a specific and enduring position in the pilot's watch world: the instrument watch for people who want genuine pilot's watch functionality at a price that does not require a long commitment. The internal rotating slide rule bezel — operated by the secondary crown at 8 o'clock, in the position that most naturally allows one-handed operation — is a working navigational tool, not decoration. The GMT complication provides a true second time zone readout. The 200m water resistance is significantly deeper than most pilot's watches require but reflects the Promaster series' general specification standard. And the Eco-Drive movement — powered by any light source, never requiring a battery — means a Nighthawk worn regularly will run indefinitely without battery replacement.
The Nighthawk has been in continuous production since 1988, making it one of the longest-running pilot's watch designs in the current market. The BJ7000 series is the fourth generation of the design, introduced around 2006 and still in production with the same fundamentals: 42mm case, black dial, Arabic numerals, slide rule bezel, dual crown configuration.
Citizen Nighthawk Strap Size
Every Citizen Nighthawk uses 22mm lugs — confirmed by WatchCrunch review ("22mm lug width"), Chronometer Check review ("22mm lug width and bracelet"), and Delugs' own guide. Standard spring bars throughout all variants.
BJ7000-52E (black dial, bracelet) — 22mm. 42mm case, 13mm thick, 47mm lug-to-lug. BJ7001-50L (black dial, leather strap) — 22mm. BJ7006-56L (blue dial, leather strap) — 22mm. BJ7007-02L (Blue Angels navy, leather strap) — 22mm. BJ7008-51E (black dial, mesh bracelet) — 22mm. BJ7050-54E (black/blue dial, bracelet) — 22mm.
Order 22mm for any Citizen Nighthawk reference without exception.
The Nighthawk's 22mm lug width is shared with the Tudor Pelagos 42mm, Seiko Turtle, Seiko 5 Sports SRPD, and Mido Multifort — the same CNS 22mm strap rotation serves all of them.
The Nighthawk's Character — Instrument Watch Logic
The Chronometer Check reviewer captured the Nighthawk's essential character: "a tool watch that I expect to wear often and beat up." The fully brushed case, the dense instrument dial with multiple bezel rings, and the 200m water resistance all reference operational aviation equipment rather than dress watches. The Nighthawk is not trying to be elegant — it is trying to be useful.
This creates a clear strap logic. Canvas is the most historically specific choice for an aircraft instrument watch. Operational nylon references the cockpit equipment world. Leather transforms the instrument into a versatile everyday piece. Rubber for active and water use. Citizen themselves validate leather by shipping the BJ7001 and BJ7007 Blue Angels variants on leather straps as standard.
Best Nylon and Canvas Straps for the Citizen Nighthawk
Canvas at 22mm in olive or black — the most specifically aviation instrument-appropriate fabric for the Nighthawk. Aircraft manufacturing and cockpit equipment culture has used canvas throughout its history — from early aviation through the jet age. Olive canvas on the Nighthawk's black dial creates a fully aviation-palette combination. The WatchCrunch reviewer specifically identified olive as their preferred Nighthawk strap colour.
Single-pass nylon — Original at 22mm with the CNS solid buckle. Most appropriate Nighthawk colourways:
- Olive / khaki — the most specifically aviation-instrument appropriate colour. The Nighthawk's own design language references the cockpit and the flight line — both are olive and khaki environments.
- Black — the most minimal and most operationally coherent.
- Navy — for the Blue Angels BJ7007 variant. Tonal coherence with the navy blue case and dial.
- Admiralty Grey — for the most MOD-specification operational combination.
- Black and grey — the most understated collector combination.
RAF single-pass nylon at 22mm — the most specifically British military aviation heritage nylon. The Nighthawk's pilot's watch character connects directly to the British aviation world the RAF strap references.
Marine Nationale elastic at 22mm — the most comfortable Nighthawk daily option. Navy or black.
Paratrooper elastic at 22mm — the most comfortable daily-wear option.
Best Leather Straps for the Citizen Nighthawk
Citizen ships the BJ7001 on leather as standard and the Blue Angels BJ7007 on navy leather — validating leather as factory-endorsed. Leather transforms the instrument watch into a versatile sport-dress piece suited to business and smart-casual contexts.
Brown vintage two-stitch calfskin at 22mm — the most characterful Nighthawk leather combination. The warm brown and two-stitch construction reference the aviator culture of the 1950s and 1960s — the leather flight jackets, instrument bags, and navigator's cases of the jet age that the slide rule bezel references. The Delugs reviewer called warm brown "a striking contrast against the black dial."
Dark brown padded calfskin at 22mm — the most substantial everyday leather for the Nighthawk's 13mm case thickness.
Classic flat calfskin in black at 22mm — the most formal Nighthawk combination.
Navy calfskin at 22mm — for the Blue Angels BJ7007, following Citizen's own factory navy leather pairing.
Tan suede at 22mm — the most relaxed leather, referencing the worn leather of aviation equipment culture.
Dark brown suede at 22mm — for smart-casual contexts.
Best Rubber Straps for the Citizen Nighthawk
The Nighthawk's 200m water resistance makes rubber a genuinely practical choice for active and travel contexts.
Classic FKM rubber in black at 22mm — the most practical active choice. Black FKM on the Nighthawk's fully brushed case creates a purposeful operational combination.
Tropical style FKM in black at 22mm — for a more characterful vintage-textured rubber combination.
Variant-Specific Recommendations
BJ7000-52E (black dial, bracelet) — the most versatile: olive canvas for operational aviation character; brown vintage two-stitch leather for everyday dress-sport.
BJ7006-56L (blue dial) — navy calfskin for tonal coherence; olive canvas for operational contrast.
BJ7007-02L Blue Angels (navy case and dial) — navy calfskin following Citizen's factory pairing; black rubber for active.
All at 22mm.
Recommended Combinations
Most aviation-authentic — olive canvas at 22mm — the most historically specific strap for a cockpit instrument watch.
Most characterful leather — brown vintage two-stitch calfskin at 22mm — warm leather on the instrument dial.
Most operational — olive single-pass nylon at 22mm — flight line colour palette.
Most specifically British aviation heritage — RAF single-pass nylon at 22mm.
Blue Angels — navy calfskin following Citizen's factory pairing.
Most comfortable daily — Marine Nationale elastic at 22mm.
Most active — black FKM rubber at 22mm.
Frequently Asked Questions
What size strap does the Citizen Nighthawk take? 22mm — confirmed by WatchCrunch, Chronometer Check, and Delugs' own guide. All Nighthawk variants from BJ7000 through BJ7050 use 22mm standard spring bar lugs.
What is the best strap for the Citizen Nighthawk? Olive canvas at 22mm for the most aviation-authentic combination — canvas references the flight line and cockpit equipment culture the Nighthawk's slide rule bezel belongs to. Brown vintage two-stitch leather for the most characterful everyday transformation.
What is the slide rule bezel on the Citizen Nighthawk? The internal rotating slide rule bezel is a circular slide rule — an analogue calculating tool used by pilots to compute airspeed, fuel consumption, time/distance problems, and unit conversions without electronics. It is operated by the secondary crown at the 8 o'clock position, which allows one-handed rotation during flight. Pre-digital aviation navigation relied on circular slide rules; the Nighthawk's bezel is a working navigational instrument in the same tradition.
What is Eco-Drive and why does it matter for daily wear? Eco-Drive is Citizen's light-powered technology — the watch converts any light source (sunlight or artificial) into electrical energy stored in a capacitor. A fully charged Eco-Drive Nighthawk will run in complete darkness for approximately six months. In normal daily wear the watch never requires a battery. This makes the Nighthawk a genuinely practical daily wear instrument — no winding, no battery changes, no charge concerns.
Does the Citizen Nighthawk take the same strap as the Seiko Turtle? Yes — both use 22mm standard spring bar lugs. The same CNS 22mm strap fits the Nighthawk, Seiko Turtle, Seiko 5 Sports SRPD, Tudor Pelagos 42mm, and Mido Multifort.
All CNS straps for the Citizen Nighthawk are available at 22mm. Standard delivery worldwide. 30-day returns.