Seiko Cal. 4577 - 840

This Solar model from 1975 features a 39mm Titanium case. Powered by the 4577 caliber with 32j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-2a51fc24a090]

Also known as: Sea Horse

Specifications

Movement

Solar

Case Material

Titanium

Case Width

39mm

Case Thickness

9.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Silver

Jewels

32j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1975

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