Seiko Cal. 6137 - 717

This Spring Drive model from 1987 features a 40mm Stainless Steel case. With its 20mm lug width and 9.2mm profile, it sits comfortably on most wrists. [seikata-wm-138a5286da4b]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

9.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Navy

Jewels

36j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1987

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