Seiko Cal. 3866 - 725

This Hand-Winding model from 1969 features a 46mm Hardlex-Coated Steel case. Powered by the 3866 caliber with 28j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-d8f349c851c9]

Also known as: Arnie

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

8.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

170m

Dial Color

White

Jewels

28j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1969

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