Seiko Cal. 7137 - 230

Released in 1979, the Cal. 7137 with design code 230 was part of Seiko's domestic market collection. The Bidirectional bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-434459df93fe]

Also known as: Sumo, Shogun

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

39mm

Case Thickness

8.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Champagne

Jewels

35j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1979

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