G. Gerlach · Microbrand · Poland
G. Gerlach Navigator Mk 3 GMT
- Seiko NH34A
- 39 mm × 12 mm
- Sapphire crystal
- 100 m water resistance
Where to buy
Movement
- Caliber
- Seiko NH34A
- Type
- Automatic
- Tier
- Entry
- Complications
- Date, GMT
- Frequency
- 21,600 bph
- Power reserve
- 41 h
- Hacking
- Yes
- Accuracy (factory)
- -20 / +40 s/day
Case
- Diameter
- 39 mm
- Lug to lug
- 48 mm
- Thickness
- 12 mm
- Lug width
- 20 mm
- Material
- Steel (316L)
- Hardening
- —
- Water resistance
- 100 m
- Crown
- —
- Case back
- —
- Bezel
- —
Crystal & dial
- Crystal
- Sapphire
- Shape
- Double-domed
- Anti-reflective
- Inner
- Lume
- Luminous hands and markers (compound not stated)
Bracelet
- Bracelet
- —
Straps
- Strap 1
- Leather, 20mm leather strap
Weight
- Head only
- —
- On bracelet
- —
- On strap
- —
Prices
Variants
| Name | Dial |
|---|---|
| Blue | blue |
| Graphite | graphite |
About this entry
73% of key specs known. Missing: weight, hardening, crown, bracelet offered.
Specs from the brand: 39x48x12 mm 316L case, double-domed sapphire with inner AR, WR 100, luminous hands and markers, Seiko/TMI NH34 with GMT and date, 20mm leather strap. The listing prices the watch by strap: leather, Milanese bracelet (the blue-dial Milanese option has no price in the store data, so the Milanese price is the graphite one's) or solid-link bracelet. Case dimensions as the brand gives them (39x48x12 mm, which it doesn't say includes the crystal); the same slim 39x48x12 case is used for the Sanatio, Tatry, Navigator Mk 3 GMT, General Sosabowski and PZL P50 Hawk Automatic and Chronograph. The brand's store is bilingual and lists the watch twice, as a Polish and an English product at the same price; both pages are listed as stores and prices cite the English one.
Last verified: 2026-10-31. Edit or correct this entry.
Sources
- G. Gerlach, Navigator Mk 3 GMT (English product page) accessed 2026-10-31
- G. Gerlach, Zegarek Navigator Mk 3 GMT (Polish product page) accessed 2026-10-31
- G. Gerlach store data (description, options and prices in PLN) accessed 2026-10-31