Side by side

Serica Ref. 5303 Diving ChronometervsTrafford Watch Co Touring GMT

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
Touring GMT
Trafford Watch CoTouring GMT
MSRP $899

At a glance

20 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Touring GMT41mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Touring GMT42 hoursh
Water Resistance
Ref. 5303 Diving Chronometer300m
Touring GMT100m
MSRP
Ref. 5303 Diving Chronometer$1,768
Touring GMT$899

Full specifications

Case

9 specs
Category
Diver
GMT
Diameter
39mm
41mm
Thickness
12.2mm
0mm
Lug-to-Lug
46.5mm
0mm
Lug Width
20mm
0mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
Hardened scratch-resistant coating
Water Resistance
300m
100m
Caseback
Solid
Exhibition

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Yes
Inner
Dial Color
Enamel Black
Bluebird Blue
Indices
Applied
Lume
Super-LumiNova
Super-LumiNova BGW9

Movement

5 specs
Caliber
M100 COSC
Miyota 9075
Beat Rate
28,800 vph
28,800 vph
Power Reserve
42h
42 hoursh
Jewels
25
24
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$899

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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.

Trafford Watch Co Touring GMT

Owners widely praise the Trafford Watch Co Touring GMT for its great finishing, fun and original designs, and nice dials. One owner notes the GMT's flyer function and unique inner bezel, while another reports their Trafford's domed crystal cracked after a short drop. Owners describe the Trafford Watch Co Touring GMT as having a "cool funky original vibe" and a "chonky boi vibe on the wrist but in a good way," with one wearer reporting daily use for a year without the watch stopping. On balance, owners rate the Trafford Watch Co Touring GMT highly for its distinctive aesthetic and robust daily performance.

From video reviewers

The Trafford Watch Co Touring GMT's unique GMT function offers an alternative way to use the feature. The micro-adjust system on the bracelet is a convenient feature for fine-tuning the fit. The watch lacks specific details on its performance, accuracy, or movement caliber, making it difficult to compare it to other GMT watches.

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