Seiko Cal. 6331 - 494

The Seiko 6331-494 represents an important milestone in Seiko's 1967 lineup. Powered by the 6331 caliber with 29j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-402a3795c589]

Also known as: UFO

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

12.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

50m

Dial Color

White

Jewels

29j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1967

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