Seiko Cal. 3820 - 139

This Solar model from 1969 features a 39mm Two-Tone case. Powered by the 3820 caliber with 20j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-9eb97adfb9f2]

Also known as: Silverwave

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

39mm

Case Thickness

11.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Burgundy

Jewels

20j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1969

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