Side by side

Serica Ref. 5303 Diving ChronometervsSpinnaker Croft 42 Skeleton

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
Croft 42 Skeleton
SpinnakerCroft 42 Skeleton
MSRP $435

At a glance

14 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Croft 42 Skeleton42mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Croft 42 Skeleton40h
Water Resistance
Ref. 5303 Diving Chronometer300m
Croft 42 Skeleton100m
MSRP
Ref. 5303 Diving Chronometer$1,768
Croft 42 Skeleton$435

Full specifications

Case

7 specs
Category
Diver
Sport
Diameter
39mm
42mm
Thickness
12.2mm
14mm
Lug-to-Lug
46.5mm
49mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

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

Movement

3 specs
Caliber
M100 COSC
SII NH38A
Power Reserve
42h
40h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$435

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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.

Spinnaker Croft 42 Skeleton

Owners widely report the Spinnaker Croft 42 Skeleton offers good build quality for its price, with some finding it a decent buy on sale. Reviewers note the 42mm case provides significant wrist presence. However, opinions are split on legibility and aesthetics, with some finding it poorly executed and uninteresting while others consider it one of the more legible skeleton watches. The watch is powered by a Seiko NH70 automatic movement with a 41-hour power reserve, though one reviewer considered the movement uninteresting. The bracelet and clasp are considered mediocre for the price point. Overall, owners and reviewers find the Spinnaker Croft 42 Skeleton to be a polarizing but potentially good value skeletonized dive watch when purchased on sale, with its build quality being a key positive for many.

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