Christopher Ward C63 Sealander GMTvsSan Martin BB GMT

BB GMT
San MartinBB GMT

Ref. san-martin-nh34-39mm-bb-gmt-watch·MSRP $269

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Christopher Ward C63 Sealander GMT at true scale

C63 Sealander GMT

San Martin BB GMT at true scale

BB GMT

Diameter

42mm

39mm

Lug-to-Lug

48.5mm

n/a

Thickness

11.3mm

n/a

Water Resistance

150m

highest

100m

Power Reserve

56h

n/a

MSRP

$1,675

$269

lowest

Movement

Sellita SW330-2

Seiko NH34

Case

7 specs
Diameter
42mm
39mm
Thickness
11.3mm
n/a
Lug-to-Lug
48.5mm
n/a
Lug Width
22mm
n/a
Finish
Brushed + Polished + Sandblasted
n/a
Water Resistance
150m
100m
Caseback
Display
n/a

Crystal & Dial

2 specs
Dial Color
Blue
n/a
Lume
SLN X1 BL C1
None

Movement

5 specs
Caliber
Sellita SW330-2
Seiko NH34
Beat Rate
4 vph
0 vph
Power Reserve
56h
0h
Jewels
25
0
Complications
GMT, Moonphase, Day-date
None

Pricing

1 specs
MSRP
$1,675
$269
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Christopher Ward C63 Sealander GMT

Owners widely praise the Christopher Ward C63 Sealander GMT's comfortable wearability, with reviewers noting the slim profile and clean finishing on the Light-catcher case featuring alternating brushed and polished surfaces. Some owners find the gloss white dial's text and indices small, and the orange accents can appear more yellow than desired. The Sellita SW330-2 movement provides caller GMT functionality. On balance, reviewers and owners appreciate the Christopher Ward C63 Sealander GMT for its comfortable wearability and case finishing at its price point.

From video reviewers

The watch is praised for its value proposition against higher-priced competitors. The bracelet lacked refinement compared to Swiss counterparts.

San Martin BB GMT

Owners are broadly enthusiastic about the San Martin BB GMT. One calls the design a handsome mashup of the Black Bay Pro and Explorer 2 that looks rugged yet can be dressed up, and another, after a couple of weeks of wear, says it wears much like a Tudor BB58. Praise for finishing is specific: one owner was struck by the polishing and craftsmanship straight out of the box, while another calls it a steal at €260 for a 20 ATM watch with sapphire crystal, anti-reflective coating, a Seiko GMT movement, and an on-the-fly adjustable clasp. Some owners dislike the clasp as big and clunky, and one reports that screw-down crown threads wouldn't seat and that the brand refused a return until AliExpress refunded him. A few note that later pieces are pricier and often need regulation. Overall, owners rate the San Martin BB GMT highly for its value and finishing, with build consistency and the clasp as the main reservations.