Seiko Cal. 4478 - 611

The Seiko 4478-611 represents an important milestone in Seiko's 1969 lineup. Powered by the 4478 caliber with 29j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-12c2ca7755c1]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

9.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Green

Jewels

29j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1969

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