Seiko Cal. 3888 - 640

The Seiko 3888-640 represents an important milestone in Seiko's 1980 lineup. Powered by the 3888 caliber with 35j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-24d38ad99a20]

Also known as: Emperor

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

36mm

Case Thickness

15.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1980

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