Seiko Cal. 3840 - 812

The 3840-812 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 3840 caliber with 17j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-a2ae9598fd84]

Also known as: Turtle, Crown

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

11.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Silver

Jewels

17j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1976

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