Seiko Cal. 4485 - 644

The 4485-644 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4485 caliber with 35j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-248b5253ccc3]

Also known as: Monster, Silverwave

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

14.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Champagne

Jewels

35j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1977

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