Seiko Cal. 6240 - 170

This Spring Drive model from 1969 features a 41mm Titanium case. With its 18mm lug width and 12.6mm profile, it sits comfortably on most wrists. [seikata-wm-456739ad5aa7]

Also known as: Monster, Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

41mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

60m

Dial Color

Black

Jewels

28j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1969

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