Seiko Cal. 6240 - 142

This Spring Drive model from 1971 features a 34mm Titanium case. With its 21mm lug width and 12.5mm profile, it sits comfortably on most wrists. [seikata-wm-b7a00461cfdb]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

12.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Navy

Jewels

34j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1971

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