Side by side

Serica Ref. 5303 Diving ChronometervsOrient Bambino Version 1

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
Bambino Version 1
OrientBambino Version 1
MSRP $255

At a glance

18 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Bambino Version 140mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Bambino Version 140h
Water Resistance
Ref. 5303 Diving Chronometer300m
Bambino Version 130m
MSRP
Ref. 5303 Diving Chronometer$1,768
Bambino Version 1$255

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
39mm
40mm
Thickness
12.2mm
11.8mm
Lug-to-Lug
46.5mm
46.8mm
Lug Width
20mm
21mm
Water Resistance
300m
30m

Crystal & Dial

6 specs
Crystal
Sapphire
Mineral
Crystal Shape
Flat
AR Coating
Yes
Dial Color
Enamel Black
Black
Indices
Applied
Lume
Super-LumiNova
None

Movement

5 specs
Caliber
M100 COSC
F6724
Beat Rate
28,800 vph
21,600 vph
Power Reserve
42h
40h
Jewels
25
22
Complications
COSC
Date

Pricing

1 specs
MSRP
$1,768
$255

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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.

Orient Bambino Version 1

The Orient Bambino Version 1 is widely praised as an exceptional value dress watch with a timeless aesthetic, appreciated for its automatic movement and quality under $150. Owners consistently highlight its smart, quintessential dress watch look, with Roman numeral and index markers being a particular point of admiration. Some reviewers note the dial has a greenish/blueish tint rather than pure white, and the winding motion is described as a little rough. Accuracy is reported as very good, with one owner seeing +1 second per day. While the design is praised, some find its size slightly large for a dress watch, and one owner found rotor noise and size bothersome. Stock straps are frequently mentioned as a drawback, described as plasticky, non-tapering, or not to taste. Some owners suggest better value can be found elsewhere, citing mineral crystal and non-hacking, non-handwinding movement as drawbacks.

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