Seiko Cal. 7137 - 446

The Seiko 7137-446 represents an important milestone in Seiko's 1974 lineup. With its 18mm lug width and 13.2mm profile, it sits comfortably on most wrists. [seikata-wm-1ce9803cd108]

Also known as: Silverwave, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

13.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

150m

Dial Color

Silver

Jewels

22j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1974

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