Seiko Cal. 4521 - 775

The 4521-775 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4521 caliber with 21j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-bb63dc23273c]

Also known as: Panda, Helmet

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

30m

Dial Color

Champagne

Jewels

21j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1974

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