Seiko Cal. 7170 - 911

The Seiko 7170-911 represents an important milestone in Seiko's 1970 lineup. The Bidirectional bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-5c03e36c1ff9]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

11.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Black

Jewels

31j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1970

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