Seiko Cal. 4521 - 525

The Seiko 4521-525 represents an important milestone in Seiko's 1968 lineup. Powered by the 4521 caliber with 31j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-e376710efac2]

Also known as: Sportsmatic

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

35mm

Case Thickness

11.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

60m

Dial Color

Champagne

Jewels

31j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1968

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