Seiko Cal. 6156 - 226

This Spring Drive model from 1970 features a 42mm PVD Black case. Powered by the 6156 caliber with 24j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-8cdba236a381]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

12.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1970

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