Seiko Cal. 3888 - 690

The Seiko 3888-690 represents an important milestone in Seiko's 1980 lineup. Powered by the 3888 caliber with 23j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-10e0c5d7215f]

Also known as: Shogun

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

13.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Black

Jewels

23j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1980

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