Seiko Cal. 4521 - 423

The 4521-423 is a sought-after Solar piece from Seiko's golden era. Powered by the 4521 caliber with 32j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-59c64f307db2]

Also known as: Tuna, UFO

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

44mm

Case Thickness

14.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

110m

Dial Color

Green

Jewels

32j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1994

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