Seiko Cal. 4470 - 497

The Seiko 4470-497 represents an important milestone in Seiko's 1979 lineup. Powered by the 4470 caliber with 31j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-92714cedfa5f]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

39mm

Case Thickness

9.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Green

Jewels

31j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1979

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