Seiko Cal. 3870 - 206

This Solar model from 1972 features a 42mm PVD Black case. Powered by the 3870 caliber with 24j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-ce6a95df1b34]

Also known as: Bellmatic, Crown

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

42mm

Case Thickness

12.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Navy

Jewels

24j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1972

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