Seiko Cal. 5643 - 786

The 5643-786 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5643 caliber with 35j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-57170674a5ab]

Also known as: Bullhead, World Timer

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

14.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Burgundy

Jewels

35j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1970

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