Seiko Cal. 3860 - 555

The Seiko 3860-555 represents an important milestone in Seiko's 1989 lineup. With its 20mm lug width and 11.2mm profile, it sits comfortably on most wrists. [seikata-wm-f3aa951be08e]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Titanium

Case Width

44mm

Case Thickness

11.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Cream

Jewels

20j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1989

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