Seiko Cal. 7170 - 140

This Spring Drive model from 1977 features a 40mm Titanium case. With its 20mm lug width and 9.0mm profile, it sits comfortably on most wrists. [seikata-wm-3f422a6f4e93]

Also known as: Turtle, Sumo

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

9.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1977

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