Seiko Cal. 4427 - 502

The 4427-502 is a sought-after Quartz piece from Seiko's golden era. Powered by the 4427 caliber with 30j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-451b545e6a5b]

Also known as: Silverwave, Sportsmatic

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

14.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Silver

Jewels

30j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1977

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