Seiko Cal. 7164 - 551

This Spring Drive model from 1987 features a 41mm Two-Tone case. Powered by the 7164 caliber with 29j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-218bd0de0e9d]

Also known as: Bullhead, Navigator

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

8.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Black

Jewels

29j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1987

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