Seiko Cal. 4451 - 947

The 4451-947 is a sought-after Solar piece from Seiko's golden era. Powered by the 4451 caliber with 27j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-cb42d8de5a9e]

Also known as: Sportsmatic, Navigator

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

44mm

Case Thickness

14.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Burgundy

Jewels

27j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1977

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