lug2lug
BrowseCompareNewsCommunityMy Watches
BrowseCompareNewsCommunityMy Watches
Theme
Popular microbrands:Christopher Ward·Baltic·anOrdain·Atelier Wen·Boldr·Bremont·Dan Henry·DOXABrowse all →
Best, by the specs:Diver under $2,000·Dress under $5,000·Chronograph under $5,000·Best sport watches·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·Selling calculator·What should I buy?·Market index·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
TermsPrivacyDelete accountCopyrightDisclosuresContactContribute

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

© 2026 Lug2Lug LLC · Prices are estimates and not offers

Loading watch
Home/Browse/BOLDR Supply Co./GMT Maasai Mara
SpecStudio
BOLDR Supply Co. GMT Maasai Mara
Click to inspect
BOLDR Supply Co. · GMT Maasai Mara

BOLDR Supply Co. GMT Maasai Mara

GMT

$469In stock

Case

Diameter
40mm
Thickness
12.6mm
Lug-to-lug
46mm
Lug width
20mm
Material
Stainless Steel
Water resistance
200m

Crystal & dial

Crystal
Sapphire

Movement

Caliber
Seiko NH34
Type
Automatic

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
matte
Bezel
gmt
Bracelet
lug-attached
Hands
baton

AI-detected from the product image

2 colorways

Alternatives

01The market

Market prices.

Retail$469

No forum listings recorded for this watch yet.

02The connection engine

More like this.

BOLDR Supply Co. GMT Tarangire

BOLDR Supply Co.

GMT Tarangire

40mm · Automatic$469

Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316

Islander

Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316

40mm · Automatic$379

Undone Basecamp Collector

Undone

Basecamp Collector

40mm · Automatic$695

NIMA Watches NIMA Stage One GMT

NIMA Watches

NIMA Stage One GMT

39mm · Automatic$682

NIMA Watches NIMA GMT (NH34) GMT 39mm fluted-bezel applied-baton (Datejust-style)

NIMA Watches

NIMA GMT (NH34) GMT 39mm fluted-bezel applied-baton (Datejust-style)

39mm · Automatic$679

Jack Mason Strat-o-timer GMT

Jack Mason

Strat-o-timer GMT

40mm · Automatic$1,099

View all alternatives

03The community take

Owners talk.

“
In a nutshell

The BOLDR Supply Co. GMT Maasai Mara is an automatic gmt watch, with a 40mm stainless steel case, 12.6mm thick, powered by the Seiko NH34 movement. Water resistance is rated to 200m, under a sapphire crystal. Manufacturer MSRP is $469.

Open the discussion

On real wrists

No shots yet. Show how it wears.

04The paper trail

Ask the communityStart a discussion about the GMT Maasai Mara: get takes from other collectors.Ask →

05The discussion

Talk about the BOLDR Supply Co. GMT Maasai Mara.