Seiko Cal. 5648 - 744

This Solar model from 1968 features a 45mm Titanium case. Powered by the 5648 caliber with 29j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-a85fe1cae909]

Also known as: World Timer, Emperor

Specifications

Movement

Solar

Case Material

Titanium

Case Width

45mm

Case Thickness

9.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Green

Jewels

29j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1968

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