Side by side

Serica Ref. 5303 Diving ChronometervsVario VARIO x RZE UltraHex Titanium Trench

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
VARIO x RZE UltraHex Titanium Trench
VarioVARIO x RZE UltraHex Titanium Trench
MSRP $499

At a glance

15 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
VARIO x RZE UltraHex Titanium Trench37mm
Power Reserve
Ref. 5303 Diving Chronometer42h
VARIO x RZE UltraHex Titanium Trench40h
Water Resistance
Ref. 5303 Diving Chronometer300m
VARIO x RZE UltraHex Titanium Trench100m
MSRP
Ref. 5303 Diving Chronometer$1,768
VARIO x RZE UltraHex Titanium Trench$499

Full specifications

Case

7 specs
Category
Diver
Field
Diameter
39mm
37mm
Thickness
12.2mm
10mm
Lug-to-Lug
46.5mm
45mm
Lug Width
20mm
18mm
Material
Stainless Steel
UltraHex Titanium
Water Resistance
300m
100m

Crystal & Dial

4 specs
Crystal
Sapphire
Domed Sapphire
AR Coating
Yes
Inner
Dial Color
Enamel Black
Yellow
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
M100 COSC
Miyota 82s5
Power Reserve
42h
40h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$499

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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.

VARIO x RZE UltraHex Titanium Trench

Owners praise the VARIO x RZE UltraHex Titanium Trench for its price point and the dial's color-shifting effects, with one owner noting it as a great limited edition. A reviewer highlights its lightweight titanium case and sand-textured pink dial. Some with larger wrists may find its 36mm size compact. One owner dislikes the strap and notes the movement can occasionally be loud. Overall, owners and reviewers rate the VARIO x RZE UltraHex Titanium Trench highly for its unique dial and value at the price.

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