Seiko Cal. 6331 - 217

This Automatic model from 1973 features a 44mm Two-Tone case. Powered by the 6331 caliber with 17j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-ecbde71ce309]

Also known as: Crown

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

44mm

Case Thickness

11.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Black

Jewels

17j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1973

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