Seiko Cal. 4485 - 920

Seiko 4485-920

This Hand-Winding model from 1974 features a 40mm Titanium case. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-22b0da399f94]

Also known as: Sumo, Sportsmatic

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
40mm
Case Thickness
9.0mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
50m
Dial Color
Black
Jewels
19j
Frequency
36,000 bph
Power Reserve
47 hours
Year
1974

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seikata-wm-22b0da399f94