Seiko Cal. 4447 - 153

The 4447-153 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4447 caliber with 26j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-0bc2dd831418]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

12.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

White

Jewels

26j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1990

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