Seiko Cal. 7170 - 844

This Spring Drive model from 1971 features a 44mm Hardlex-Coated Steel case. Powered by the 7170 caliber with 31j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-40c60d7bda74]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

8.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

70m

Dial Color

Navy

Jewels

31j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1971

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