Seiko Cal. 4577 - 243

The Seiko 4577-243 represents an important milestone in Seiko's 1978 lineup. It features a Green dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-c387230bf4b5]

Also known as: Sportsmatic

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

35mm

Case Thickness

8.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Green

Jewels

22j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1978

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