Seiko Cal. 3869 - 812

The 3869-812 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3869 caliber with 30j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-419d277f5a04]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

15.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Cream

Jewels

30j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1975

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