Seiko Cal. 5613 - 645

The Seiko 5613-645 represents an important milestone in Seiko's 1966 lineup. With its 18mm lug width and 8.4mm profile, it sits comfortably on most wrists. [seikata-wm-83657fdce221]

Also known as: Panda, World Timer

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

8.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Navy

Jewels

26j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1966

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