Seiko Cal. 6243 - 421

The 6243-421 is a sought-after Solar piece from Seiko's golden era. Powered by the 6243 caliber with 21j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-7d28ab2f4f2f]

Also known as: Rally

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

12.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1975

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