Side by side

Serica Ref. 5303 Diving ChronometervsGlycine Combat Classic

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
Combat Classic
GlycineCombat Classic
MSRP $1,550

At a glance

18 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Combat Classic43mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Combat Classic38h
Water Resistance
Ref. 5303 Diving Chronometer300m
Combat Classic50m
MSRP
Ref. 5303 Diving Chronometer$1,768
Combat Classic$1,550

Full specifications

Case

8 specs
Category
Diver
Diameter
39mm
43mm
Thickness
12.2mm
10.7mm
Lug-to-Lug
46.5mm
Lug Width
20mm
22mm
Finish
Brushed and polished
Water Resistance
300m
50m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Yes
Dial Color
Enamel Black
Gold
Indices
Applied
Lume
Super-LumiNova
None

Movement

4 specs
Caliber
M100 COSC
SW200-1
Power Reserve
42h
38h
Jewels
25
26
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$1,550

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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.

Glycine Combat Classic

Owners widely praise the Glycine Combat Classic for its refined engineering, comfortable wearability, and well-designed, legible dial. The lume on the markers and Arabic numerals is noted as sufficient, though the lume on the hands is minimal. One owner reported their 42mm version outperformed other watches despite rough use, while another found the quality fantastic but gave away the 42mm version due to its size. On balance, owners rate the Glycine Combat Classic highly for its quality and finishing at the price, with the primary caveat being the size of the 42mm variant for some wearers.

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