Seiko Cal. 5691 - 736

The 5691-736 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5691 caliber with 25j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-88191a4593e7]

Also known as: UFO, World Timer

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

14.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

100m

Dial Color

Black

Jewels

25j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1983

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