Seiko Cal. 4531 - 610

Released in 1967, the Cal. 4531 with design code 610 was part of Seiko's domestic market collection. Powered by the 4531 caliber with 20j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-30ca8ef7a6f1]

Also known as: Sea Horse

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

36mm

Case Thickness

10.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1967

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