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Spinnaker Dumas GMT
Case
- Diameter
- 44mm
- Thickness
- 15mm
- Lug-to-lug
- 48mm
- Lug width
- 22mm
- Material
- 316L Stainless Steel
- Water resistance
- 300m
Crystal & dial
- Crystal
- Sapphire
- Dial colour
- Blue
Movement
- Caliber
- Seiko NH34
- Type
- Automatic
- Hacking
- No
- Hand-winding
- No
- Complications
- Time only
Seiko
A Seiko (TMI / Seiko Instruments) automatic GMT caliber — the export-market designation of the Seiko 4R34 — that adds a 24-hour fourth hand to the NH35 / 4R35 base. It runs at 21,600 vph with about 41 hours of power reserve, hacks and hand-winds, and has become the default affordable GMT for microbrands.
Design language
- Case shape
- round
- Dial style
- sunburst
- Bezel
- gmt
- Bracelet
- lug-attached
- Hands
- baton
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Dumas collection · 2 watches
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Owners praise the Spinnaker Dumas GMT's satisfying lume, including on the crown, and good finishing, with one owner finding it wears well on a 17cm wrist. The watch features a Seiko NH34A GMT movement and a blue gradient dial. Reviewers note its 44mm diameter and 209g weight on the bracelet make it unsuitable for smaller wrists.
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