Seiko Cal. 7154 - 537

This Automatic model from 1977 features a 35mm Two-Tone case. Powered by the 7154 caliber with 24j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-00f0de2caa4e]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

8.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

180m

Dial Color

Navy

Jewels

24j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1977

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