Which is cheaper, the Serica Ref. 5303 Diving Chronometer or the Glycine Combat 6 Classic?

At MSRP the Glycine Combat 6 Classic is the cheaper of the two at $1,450, against $1,768 for the Serica Ref. 5303 Diving Chronometer — a $318 gap before any retailer discounting.

Which is bigger, the Serica Ref. 5303 Diving Chronometer or the Glycine Combat 6 Classic?

The Serica Ref. 5303 Diving Chronometer wears larger at 39mm versus 36mm for the Glycine Combat 6 Classic — a 3mm difference across the dial.

Which has better water resistance, the Serica Ref. 5303 Diving Chronometer or the Glycine Combat 6 Classic?

The Serica Ref. 5303 Diving Chronometer is rated to 300m versus 50m for the Glycine Combat 6 Classic.

Which has a longer power reserve, the Serica Ref. 5303 Diving Chronometer or the Glycine Combat 6 Classic?

The Serica Ref. 5303 Diving Chronometer carries a 42-hour power reserve against 38 hours on the Glycine Combat 6 Classic.

What movement does the Serica Ref. 5303 Diving Chronometer run compared to the Glycine Combat 6 Classic?

Both watches run automatic movements — the Serica Ref. 5303 Diving Chronometer uses the M100 COSC and the Glycine Combat 6 Classic uses the SW200-1.

Side by side

Serica Ref. 5303 Diving ChronometervsGlycine Combat 6 Classic

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

Serica Ref. 5303 Diving Chronometer

5303-1-diving-chronometer

MSRP $1,768

Glycine Combat 6 Classic

GL0108

MSRP $1,450

At a glance

16 of 29 specs differ

Diameter

Ref. 5303 Diving Chronometer39mm

Combat 6 Classic36mm

Power Reserve

Ref. 5303 Diving Chronometer42h

Combat 6 Classic38h

Water Resistance

Ref. 5303 Diving Chronometer300m

Combat 6 Classic50m

MSRP

Ref. 5303 Diving Chronometer$1,768

Combat 6 Classic$1,450

Full specifications

Case

7 specs

Crystal & Dial

5 specs

Crystal Shape

Flat

—

AR Coating

Yes

—

Dial Color

Enamel Black

Silver

Indices

Applied

—

Lume

Super-LumiNova

Luminous

Movement

3 specs

Caliber

M100 COSC

SW200-1

Power Reserve

42h

38h

Complications

COSC

Date

Pricing

1 specs

MSRP

$1,768

$1,450

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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.

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Glycine Combat 6 Classic

Owners praise the Glycine Combat 6 Classic's dressier 36mm profile, comfortable and light wearability, and an exceptionally legible dial with lume on numerals. The Cal. 224 movement, an ETA 2824-2, is noted as reliable. One owner points out minimal lume on the hands and a visible serial number between the lugs. Overall, owners find the Glycine Combat 6 Classic a reliable and good value option, particularly for its wearability and dial legibility.

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