Seiko Cal. 4497 - 644

The 4497-644 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4497 caliber with 33j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-11e330b86921]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

15.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

White

Jewels

33j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1965

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