Seiko Cal. 3811 - 331

Seiko 3811-331

This Automatic model from 1985 features a 45mm Gold-Plated case. Powered by the 3811 caliber with 29j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-1ea9ec06cb3b]

Also known as: Crown

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
45mm
Case Thickness
9.7mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
200m
Dial Color
Black
Jewels
29j
Frequency
28,800 bph
Power Reserve
60 hours
Year
1985

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