Seiko Cal. 7137 - 290

The Seiko 7137-290 represents an important milestone in Seiko's 1969 lineup. Powered by the 7137 caliber with 23j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-3f3ad4577b81]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

10.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

70m

Dial Color

Black

Jewels

23j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1969

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