Seiko Cal. 4446 - 218

This Spring Drive model from 1970 features a 45mm Stainless Steel case. With its 21mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-dcb7650b2c90]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

15.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Silver

Jewels

31j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1970

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