Side by side

Serica Ref. 5303 Diving ChronometervsOak & Oscar The Ashland

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
The Ashland
Oak & OscarThe Ashland
MSRP $1,850

At a glance

15 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
The Ashland39.5mm
Power Reserve
Ref. 5303 Diving Chronometer42h
The Ashland42 hoursh
Water Resistance
Ref. 5303 Diving Chronometer300m
The Ashland200m
MSRP
Ref. 5303 Diving Chronometer$1,768
The Ashland$1,850

Full specifications

Case

6 specs
Category
Diver
Tool
Diameter
39mm
39.5mm
Thickness
12.2mm
12.4mm
Lug-to-Lug
46.5mm
46.8mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

3 specs
Crystal Shape
Flat
Double-domed
AR Coating
Yes
Underside
Dial Color
Enamel Black
Green

Movement

5 specs
Caliber
M100 COSC
ETA 2892A2
Beat Rate
28,800 vph
4 vph
Power Reserve
42h
42 hoursh
Jewels
25
21
Complications
COSC
GMT, Chronograph, Date

Pricing

1 specs
MSRP
$1,768
$1,850

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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.

Oak & Oscar The Ashland

Owners widely appreciate Oak & Oscar The Ashland for its handsome design, symmetrical dial layout, and good timekeeping, with one owner reporting -4 seconds per day. Some pre-owned examples show minor marks on the lugs, bezel, and case, along with strap wear, consistent with normal use. On balance, owners value Oak & Oscar The Ashland for its attractive design and reliable performance.

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