Seiko Cal. 6154 - 506

This Spring Drive model from 1972 features a 41mm Two-Tone case. Powered by the 6154 caliber with 18j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-9b16e3b35821]

Also known as: Sumo, Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

10.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1972

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