Seiko Cal. 6636 - 372

This Solar model from 1990 features a 40mm Stainless Steel case. Powered by the 6636 caliber with 24j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-b701aa5ab565]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

12.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Green

Jewels

24j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1990

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