Seiko Cal. 3870 - 671

This Solar model from 1970 features a 37mm PVD Black case. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-7008d0dd9569]

Also known as: Baby Tuna

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

37mm

Case Thickness

8.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1970

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