Seiko Cal. 7137 - 230

The Seiko 7137-230 represents an important milestone in Seiko's 1981 lineup. It features a Cream dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-c0f85dbf5179]

Also known as: Tuna, Bullhead

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

35mm

Case Thickness

14.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

50m

Dial Color

Cream

Jewels

17j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1981

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