Seiko Cal. 3887 - 165

The Seiko 3887-165 represents an important milestone in Seiko's 1972 lineup. Powered by the 3887 caliber with 29j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-6001d4ea6c7e]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

15.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1972

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