Seiko Cal. 3812 - 502

Seiko 3812-502

The 3812-502 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Burgundy dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-d4d04f9122e4]

Also known as: Bullhead, Sportsmatic

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
43mm
Case Thickness
8.6mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
90m
Dial Color
Burgundy
Jewels
29j
Frequency
21,600 bph
Power Reserve
56 hours
Year
1983

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