Seiko Cal. 7137 - 544

This Hand-Winding model from 1965 features a 38mm Two-Tone case. Powered by the 7137 caliber with 27j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-7b8873e192a1]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

38mm

Case Thickness

13.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Green

Jewels

27j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1965

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