Seiko Cal. 3887 - 678

Released in 1976, the Cal. 3887 with design code 678 was part of Seiko's domestic market collection. The Fixed bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-f1cc3927ebc4]

Also known as: Sportsmatic, World Timer

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

43mm

Case Thickness

9.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

150m

Dial Color

Champagne

Jewels

23j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1976

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