Seiko Cal. 6331 - 901

The Seiko 6331-901 represents an important milestone in Seiko's 1969 lineup. Powered by the 6331 caliber with 24j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-ffb2de6e8ace]

Also known as: Arnie

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

13.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

110m

Dial Color

White

Jewels

24j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1969

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