Seiko Cal. 4463 - 641

The 4463-641 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4463 caliber with 27j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-cee032e0f6a1]

Also known as: Navigator, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

45mm

Case Thickness

9.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

80m

Dial Color

Cream

Jewels

27j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1968

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