Seiko Cal. 5665 - 617

The Seiko 5665-617 represents an important milestone in Seiko's 1986 lineup. Powered by the 5665 caliber with 29j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-077b13890e52]

Also known as: Bullhead, Sportsmatic

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

34mm

Case Thickness

11.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Silver

Jewels

29j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1986

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