Seiko Cal. 5646 - 905

The Seiko 5646-905 represents an important milestone in Seiko's 1981 lineup. Powered by the 5646 caliber with 36j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-b9043183a64d]

Also known as: World Timer, Baby Tuna

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

14.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

180m

Dial Color

Cream

Jewels

36j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1981

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