Seiko Cal. 3812 - 860

The 3812-860 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3812 caliber with 21j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-ba9980f116a1]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

11.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Cream

Jewels

21j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1974

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