Side by side
Serica Ref. 5303 Diving ChronometervsTedoro Harmony 36mm Stainless Steel Seiko NH35A
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
Ref. 5303 Diving Chronometer39mm
Harmony 36mm Stainless Steel Seiko NH35A36mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Harmony 36mm Stainless Steel Seiko NH35A41h
Water Resistance
Ref. 5303 Diving Chronometer300m
Harmony 36mm Stainless Steel Seiko NH35A100m
MSRP
Ref. 5303 Diving Chronometer$1,768
Harmony 36mm Stainless Steel Seiko NH35A$495
Full specifications
Case
6 specsCategory
Diver
—
Diameter
39mm
36mm
Thickness
12.2mm
—
Lug-to-Lug
46.5mm
—
Lug Width
20mm
—
Water Resistance
300m
100m
Crystal & Dial
3 specsAR Coating
Yes
Inner
Dial Color
Enamel Black
Burgundy
Lume
Super-LumiNova
None
Movement
3 specsCaliber
M100 COSC
Seiko NH35A
Power Reserve
42h
41h
Complications
COSC
None
Pricing
1 specsMSRP
$1,768
$495
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