Seiko Cal. 3812 - 447

Seiko 3812-447

This Quartz model from 1986 features a 44mm Hardlex-Coated Steel case. With its 20mm lug width and 10.6mm profile, it sits comfortably on most wrists. [seikata-wm-a5d8130805a1]

Also known as: Sumo, Sportsmatic

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
44mm
Case Thickness
10.6mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
140m
Dial Color
White
Jewels
21j
Frequency
36,000 bph
Power Reserve
70 hours
Year
1986

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