Seiko Cal. 4415 - 777

The Seiko 4415-777 represents an important milestone in Seiko's 1968 lineup. Powered by the 4415 caliber with 31j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-f022fac108ad]

Also known as: Sportsmatic

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

30m

Dial Color

Black

Jewels

31j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1968

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