Seiko Cal. 3887 - 655

The Seiko 3887-655 represents an important milestone in Seiko's 1966 lineup. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-0d5ccff8c262]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

36mm

Case Thickness

14.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1966

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