Side by side

Serica Ref. 5303 Diving ChronometervsWilliam Wood Triumph Chronograph

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Ref. 5303 Diving Chronometer
SericaRef. 5303 Diving Chronometer
MSRP $1,768
Triumph Chronograph
William WoodTriumph Chronograph
MSRP $2,525

At a glance

13 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Triumph Chronograph41mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Triumph Chronograph40h
Water Resistance
Ref. 5303 Diving Chronometer300m
Triumph Chronograph100m
MSRP
Ref. 5303 Diving Chronometer$1,768
Triumph Chronograph$2,525

Full specifications

Case

6 specs
Category
Diver
Chronograph
Diameter
39mm
41mm
Thickness
12.2mm
16mm
Lug-to-Lug
46.5mm
49.5mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

3 specs
AR Coating
Yes
Inner
Dial Color
Enamel Black
Steel
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
M100 COSC
Sellita SW510
Power Reserve
42h
40h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$2,525

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What people say

Owners + reviewers, side by side

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

Serica Ref. 5303 Diving Chronometer

Owners widely praise the Serica Ref. 5303 Diving Chronometer for its excellent wearability, definitive style, and smooth, confident bezel action. The dual scale on the bezel is noted as surprisingly useful, and the crown action, winding, and hacking are reported to work perfectly. One owner describes the Serica 5303-3 as gorgeous and unique, though another notes the crown can appear comically large. On balance, owners rate the Serica Ref. 5303 Diving Chronometer highly for its blend of unique design and robust functionality.

William Wood Triumph Chronograph

The William Wood Triumph Chronograph is a Swiss-made chronograph featuring a 41mm stainless steel case and a Sellita SW510 movement. Reviewers highlight its firefighting-inspired design, including a sandwich dial, unique sub-dials, and upcycled fire hose straps. The watch has a 48-hour power reserve, though the movement is often credited with up to 56 hours. Its 16.5mm height and 49.5mm lug-to-lug measurement mean it wears large on a 7-inch wrist, and the handset is described as flat and blocky. Overall, reviewers appreciate the novel design elements and thematic execution of the William Wood Triumph Chronograph.

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