Seiko Cal. 5643 - 536

The 5643-536 is a sought-after Solar piece from Seiko's golden era. With its 19mm lug width and 13.7mm profile, it sits comfortably on most wrists. [seikata-wm-7a0ff6426fce]

Also known as: Bullhead, World Timer

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

44mm

Case Thickness

13.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Champagne

Jewels

35j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1989

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