Seiko Cal. 4477 - 730

The Seiko 4477-730 represents an important milestone in Seiko's 1970 lineup. Powered by the 4477 caliber with 25j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-9f4a8e5bd1de]

Also known as: Bellmatic

Specifications

Movement

Solar

Case Material

Titanium

Case Width

40mm

Case Thickness

11.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Cream

Jewels

25j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1970

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