Seiko Cal. 5643 - 733

The 5643-733 is a sought-after Hand-Winding piece from Seiko's golden era. With its 19mm lug width and 13.6mm profile, it sits comfortably on most wrists. [seikata-wm-8c4e3f875aed]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

13.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Navy

Jewels

19j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1974

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