Seiko Cal. 7020 - 645

The 7020-645 is a sought-after Solar piece from Seiko's golden era. Powered by the 7020 caliber with 21j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-e8e935af245f]

Also known as: World Timer

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

42mm

Case Thickness

13.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

40m

Dial Color

Navy

Jewels

21j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1983

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