Seiko Cal. 4550 - 139

The 4550-139 is a sought-after Spring Drive piece from Seiko's golden era. It features a Green dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-71fe9bd60932]

Also known as: Panda, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

14.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Green

Jewels

30j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1987

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