Seiko Cal. 4521 - 507

This Solar model from 1987 features a 44mm PVD Black case. Powered by the 4521 caliber with 19j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-9c8070637f5e]

Also known as: Sportsmatic

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

44mm

Case Thickness

8.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Navy

Jewels

19j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1987

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