Side by side

Serica Ref. 5303 Diving ChronometervsBremont Boeing Model

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
Boeing Model
BremontBoeing Model
MSRP $5,595

At a glance

14 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Boeing Model43mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Boeing Model40h
Water Resistance
Ref. 5303 Diving Chronometer300m
Boeing Model100m
MSRP
Ref. 5303 Diving Chronometer$1,768
Boeing Model$5,595

Full specifications

Case

7 specs
Category
Diver
Pilot
Diameter
39mm
43mm
Thickness
12.2mm
Lug-to-Lug
46.5mm
Lug Width
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

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

Movement

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

Pricing

1 specs
MSRP
$1,768
$5,595

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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.

Bremont Boeing Model

The Bremont Boeing Model 247 is praised for its excellent legibility and tactile pushers, with its robust Custom 465 stainless steel case noted as a tool-watch design choice. Owners highlight the lightweight feel of the titanium variant and its understated, detailed dial design. Some find the 43mm size and weight substantial, while others consider the 4:30 date window and rotating bezel unnecessary. One owner reported a missing 12 o'clock index triangle, and luminosity is criticized as poor. On balance, owners and reviewers find the Bremont Boeing Model 247 a well-built watch, with its lightweight titanium case and legible dial being key strengths.

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