Seiko Cal. 6663 - 166

This Hand-Winding model from 1970 features a 38mm Two-Tone case. Powered by the 6663 caliber with 35j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-86c5b522d1f3]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

38mm

Case Thickness

13.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Green

Jewels

35j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1970

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