Seiko Cal. 4551 - 366

The 4551-366 is a sought-after Spring Drive piece from Seiko's golden era. It features a Green dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-0b53f4ac8a65]

Also known as: World Timer, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

11.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Green

Jewels

24j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1993

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