Seiko Cal. 0770 - 717

The Seiko 0770-717 represents an important milestone in Seiko's 1965 lineup. Powered by the 0770 caliber with 33j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-a594f0a5b791]

Also known as: Tuna, Crown

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

8.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

160m

Dial Color

Navy

Jewels

33j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1965

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