Seiko Cal. 7021 - 513

The Seiko 7021-513 represents an important milestone in Seiko's 1981 lineup. Powered by the 7021 caliber with 33j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-7a34fb773e74]

Also known as: Tuna, Arnie

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

41mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

White

Jewels

33j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1981

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