Seiko Cal. 5646 - 535

The Seiko 5646-535 represents an important milestone in Seiko's 1979 lineup. Powered by the 5646 caliber with 31j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-5ddc86c4905e]

Also known as: Sportsmatic, Arnie

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

11.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

Green

Jewels

31j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1979

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