Seiko Cal. 7171 - 816

The Seiko 7171-816 represents an important milestone in Seiko's 1973 lineup. Powered by the 7171 caliber with 21j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-cc7ed2110c5f]

Also known as: Turtle, Helmet

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

13.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

180m

Dial Color

Navy

Jewels

21j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1973

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