Side by side

Serica Ref. 5303 Diving ChronometervsBremont Altitude 39 Date

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
Altitude 39 Date
BremontAltitude 39 Date
MSRP $4,250

At a glance

12 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Altitude 39 Date39mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Altitude 39 Date40h
Water Resistance
Ref. 5303 Diving Chronometer300m
Altitude 39 Date100m
MSRP
Ref. 5303 Diving Chronometer$1,768
Altitude 39 Date$4,250

Full specifications

Case

5 specs
Category
Diver
Pilot
Thickness
12.2mm
11.19mm
Lug-to-Lug
46.5mm
Material
Stainless Steel
316L Stainless Steel (DLC coated)
Water Resistance
300m
100m

Crystal & Dial

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

Movement

3 specs
Caliber
M100 COSC
BE-92AE
Power Reserve
42h
40h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$4,250

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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 Altitude 39 Date

Owners and reviewers widely praise the Bremont Altitude 39 Date as a sleek, legible, and everyday-suited pilot's watch, noting its comfortable 39mm 904L steel case and clean dial design. The La Joux-Perret G100 movement is recognized for its 68-hour power reserve and smooth winding feel. Some owners note the bracelet lacks micro-adjustments. On balance, the consensus is that the Bremont Altitude 39 Date is highly regarded for its refined finishing and wearability at 39mm.

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