Seiko Cal. 4521 - 820

This Solar model from 1965 features a 44mm Two-Tone case. Powered by the 4521 caliber with 23j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-b2c132680f6e]

Also known as: Samurai, Bellmatic

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

44mm

Case Thickness

11.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

110m

Dial Color

Black

Jewels

23j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1965

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