Seiko Cal. 6258 - 639

This Spring Drive model from 1972 features a 34mm Titanium case. With its 20mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-f6677d395658]

Also known as: Monster, Sumo

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

180m

Dial Color

Black

Jewels

35j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1972

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