Seiko Cal. 7137 - 690

The 7137-690 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 7137 caliber with 29j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-58704c055be8]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

8.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

90m

Dial Color

White

Jewels

29j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1982

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