Seiko Cal. 6121 - 313

The Seiko 6121-313 represents an important milestone in Seiko's 1974 lineup. With its 22mm lug width and 13.0mm profile, it sits comfortably on most wrists. [seikata-wm-7767338f4b30]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

13.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Champagne

Jewels

34j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1974

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