lug2lug
BrowseCompareNewsCommunityMy Watches
BrowseCompareNewsCommunityMy Watches
Theme
Popular microbrands:Christopher Ward·Baltic·anOrdain·Atelier Wen·Boldr·Bremont·Dan Henry·DOXABrowse all →
Best, by the specs:Best dress watches·Diver under $2,000·Chronograph under $5,000·Sport under $5,000·GMT under $5,000·Field under $500·Pilot under $2,000·Casual under $1,000All rankings →
Glossary:Lug-to-Lug·Water Resistance·Chronograph·GMT·Automatic·LumeBrowse all →
Tools:Collection tracker·Wrist-fit calculator·What should I buy?·Value retention rankings·iPhone app
Lug2Letter
Watches worth knowing about, weekly.
Curated discoveries, founder spotlights, and the occasional deep-dive.
Get the app
Download on theApp StoreGET IT ONGoogle Play
TermsPrivacyCopyrightDisclosuresContactContribute

Independent reference site · not affiliated with any brand · contains affiliate links

© 2026 Lug2Lug LLC · Prices are estimates and not offers

Loading watch
Home/Browse/STEELDIVE/SD1925GMT
STEELDIVE SD1925GMT
Click to inspect
Ask the communityStart a discussion about the SD1925GMT — get takes from other collectors.Ask →
STEELDIVE

STEELDIVE SD1925GMT

Ref. SD1925GMT

$228
Buy from STEELDIVEFind used on eBay

Case

Diameter
43mm
Thickness
14mm
Lug-to-lug
51.8mm
Lug width
22mm
Material
Ceramic
Water resistance
300m

Crystal & dial

Crystal
Sapphire

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.

2 colorways

Alternatives

02The connection engine

More like this.

JIANGHUN Deep Challenger GMT Diver 300

JIANGHUN

Deep Challenger GMT Diver 300

42mm · Automatic$368

Raven Custom 42mm GMT

Raven

Custom 42mm GMT

42mm · Automatic$620

Raven MCTP - 42mm GMT Diver

Raven

MCTP - 42mm GMT Diver

42mm · Automatic$620

Enoksen ROAM E07/A Automatic GMT Watch - 41mm

Enoksen

ROAM E07/A Automatic GMT Watch - 41mm

41mm · Automatic$611

Borealis Watch Co. Sea Storm MK2 GMT

Borealis Watch Co.

Sea Storm MK2 GMT

41.5mm · Automatic$415

Spinnaker Wreck Automatic

Spinnaker

Wreck Automatic

44mm · Automatic$189

View all alternatives

03The community take

Owners talk.

“
In a nutshell

The STEELDIVE SD1925GMT (ref. SD1925GMT) is an automatic watch, with a 43mm ceramic case, 14mm thick, powered by the Seiko NH34 movement. Water resistance is rated to 300m, under a sapphire crystal. Manufacturer MSRP is $228.

Open the discussion

On real wrists

No shots yet. Show how it wears.

04The paper trail

05The discussion

Talk about the STEELDIVE SD1925GMT.