Side by side

Serica Ref. 5303 Diving ChronometervsLorca MODEL No.2 CHRONOGRAPH

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

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.

Lorca MODEL No.2 CHRONOGRAPH

The Lorca MODEL No.2 CHRONOGRAPH is praised for its well-made construction and vintage-inspired aesthetic, featuring a 37mm case, a balanced three-register dial, and a quality bracelet and clasp suitable for daily wear. It includes a manual-wind Sellita SW510M movement with a 63-hour power reserve and offers 100 meters of water resistance in a thin package. Reviewers note a unique grooved bi-directional bezel, which is described as an atypical but potentially divisive choice for a chronograph. On balance, reviewers find the Lorca MODEL No.2 CHRONOGRAPH to be a well-made watch that successfully blends vintage charm with contemporary design.

From video reviewers

The Lorca Model No.2 Chronograph features a notable guilloché bezel that adds vintage flair to its design. The watch is powered by a Swiss Sellita SW510M manual movement, offering 63 hours of power reserve. A potential drawback is the relatively small 37mm size.

At a glance

21 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
MODEL No.2 CHRONOGRAPH37mm
Power Reserve
Ref. 5303 Diving Chronometer42h
MODEL No.2 CHRONOGRAPH40h
Water Resistance
Ref. 5303 Diving Chronometer300m
MODEL No.2 CHRONOGRAPH510m
MSRP
Ref. 5303 Diving Chronometer$1,768
MODEL No.2 CHRONOGRAPH$2,750

Full specifications

Case

8 specs
Category
Diver
Chronograph
Diameter
39mm
37mm
Thickness
12.2mm
11.6mm
Lug-to-Lug
46.5mm
46mm
Lug Width
0mm
20mm
Material
Stainless Steel
Stainless Steel 316L
Finish
Brushed + Polished
Water Resistance
300m
510m

Crystal & Dial

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

Movement

7 specs
Caliber
Soprod M100
Sellita SW510
Beat Rate
0 vph
28,800 vph
Power Reserve
42h
40h
Jewels
0
25
Hacking
No
Yes
Hand-winding
No
Yes
Complications
COSC
GMT, Chronograph

Pricing

1 specs
MSRP
$1,768
$2,750
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