Seiko Cal. 3812 - 803

Seiko 3812-803

The 3812-803 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3812 caliber with 31j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-fb3c8173dace]

Also known as: Sumo

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
44mm
Case Thickness
12.4mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
140m
Dial Color
Silver
Jewels
31j
Frequency
36,000 bph
Power Reserve
43 hours
Year
1968

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