Seiko Cal. 4478 - 618

The 4478-618 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4478 caliber with 24j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-37ee400ecc9f]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

44mm

Case Thickness

11.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

200m

Dial Color

White

Jewels

24j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1967

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