Seiko Cal. 0780 - 521

The 0780-521 is a sought-after Quartz piece from Seiko's golden era. Powered by the 0780 caliber with 35j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-1b951244488f]

Also known as: Helmet, World Timer

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

37mm

Case Thickness

11.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

70m

Dial Color

Green

Jewels

35j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1973

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