Seiko Cal. 3812 - 140

Seiko 3812-140

The 3812-140 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3812 caliber with 34j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-90d1572d754e]

Also known as: Crown

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
42mm
Case Thickness
8.0mm
Lug Width
20mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
190m
Dial Color
Champagne
Jewels
34j
Frequency
21,600 bph
Power Reserve
37 hours
Year
1980

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