Seiko Cal. 3840 - 612

This Hand-Winding model from 1977 features a 46mm Two-Tone case. Powered by the 3840 caliber with 23j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-c2f47d64e768]

Also known as: Pogue, Emperor

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

46mm

Case Thickness

12.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

White

Jewels

23j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1977

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