Seiko Cal. 3813 - 492

Seiko 3813-492

This Hand-Winding model from 1972 features a 37mm Hardlex-Coated Steel case. Powered by the 3813 caliber with 35j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-9ed138d3cfda]

Also known as: Tuna, Arnie

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
37mm
Case Thickness
10.7mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
100m
Dial Color
Cream
Jewels
35j
Frequency
36,000 bph
Power Reserve
42 hours
Year
1972

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seikata-wm-9ed138d3cfda