Seiko Cal. 3870 - 777

This Spring Drive model from 1986 features a 45mm PVD Black case. It features a Silver dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-4e5ef5c9fccc]

Also known as: UFO, Flighty

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Silver

Jewels

32j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1986

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