Citizen Promaster Air NK0040-58L
Ref. NK0040-58L · Blue dial · In production
- Case40 mm
- Water res.200 m
- MovementAutomatic
- CrystalSapphire
Citizen Promaster Air NK0040-58L size, specs and price at a glance
The Citizen Promaster Air NK0040-58L is 40 mm wide. Citizen does not publish its lug-to-lug length. and ships on a bracelet. Inside is the 8310 automatic calibre, water resistant to 200 m. US list price: $895 when we last checked citizenwatch.com (3 Nov 2026).
Strap shopping? See our Citizen lug width chart.
Overview
The Citizen NK0040-58L is a sports watch from the Promaster collection, part of the Promaster Air family. It has a 40 mm titanium case. Citizen lists the dial as blue. Inside is an automatic movement (calibre 8310). You also get 200 m water resistance, a sapphire crystal and a bracelet.
Who it suits
- Wrists of roughly 16.0–17.9 cm (6.3–7.0 in), by our Watch Finder sizing guide
- Swimming, snorkelling and diving
Strengths
- Sapphire crystal resists scratches
- 200 m water resistance
Written by Watch.co from the published specs below. These are not owner reviews.
Full specifications
Case
| Case diameter | 40 mm | citizenwatch.com · 3 Nov 2026 |
|---|---|---|
| Lug-to-lug | Not published by Citizen | |
| Case material | Titanium | citizenwatch.com · 3 Nov 2026 |
| Crystal | Sapphire | citizenwatch.com · 3 Nov 2026 |
| Water resistance | 200 m | citizenwatch.com · 3 Nov 2026 |
Dial
| Dial colour | Blue | citizenwatch.com · 3 Nov 2026 |
|---|---|---|
| Date | Date | citizenwatch.com · 3 Nov 2026 |
Movement
| Movement type | Automatic | citizenwatch.com · 3 Nov 2026 |
|---|---|---|
| Calibre | 8310 | citizenwatch.com · 3 Nov 2026 |
Strap / Bracelet
| Bracelet / strap | Bracelet | citizenwatch.com · 3 Nov 2026 |
|---|
Other
| US list price (MSRP) | $895 | citizenwatch.com · 3 Nov 2026 |
|---|---|---|
| Production status | In production | citizenwatch.com · 3 Nov 2026 |
| Style (our classification) | Sports | our classification |
Specs are summarised in our own words from the brand's product page. Each row links its source and the date we checked it. Fields we haven't verified are left out rather than guessed.
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Guides and comparisons
Questions about the Citizen Promaster Air NK0040-58L
How big is the Citizen Promaster Air NK0040-58L?
The case is 40 mm wide.
What movement does the Citizen Promaster Air NK0040-58L use?
It uses the 8310 calibre, a automatic movement.
Can I swim with the Citizen Promaster Air NK0040-58L?
Yes. It is rated to 200 m.
Does the Citizen Promaster Air NK0040-58L have a date?
Yes, it shows the date.
How much is the Citizen Promaster Air NK0040-58L?
The US list price was $895 on citizenwatch.com when we checked on 3 Nov 2026. Prices change, so check before you buy.
Will the Citizen Promaster Air NK0040-58L fit my wrist?
By our sizing guide it sits best on wrists of about 16.0–17.9 cm (6.3–7.0 in). Use the fit checker on this page to test your own wrist.
Watch.co is independent and not affiliated with any brand. Brand names are used only to identify products.