Seiko Cal. 7121 - 311

The 7121-311 is a sought-after Spring Drive piece from Seiko's golden era. With its 19mm lug width and 9.3mm profile, it sits comfortably on most wrists. [seikata-wm-3291bd8efd2a]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

9.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Black

Jewels

34j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1983

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