Seiko Cal. 3863 - 818

This Solar model from 1981 features a 35mm PVD Black case. The Bidirectional bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-aeff7b41ea89]

Also known as: Baby Tuna

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

35mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Black

Jewels

35j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1981

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