Seiko Cal. 5661 - 450

The 5661-450 is a sought-after Solar piece from Seiko's golden era. It features a Green dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-a602f4484ac5]

Also known as: Sumo, Sea Horse

Specifications

Movement

Solar

Case Material

Titanium

Case Width

45mm

Case Thickness

14.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Green

Jewels

33j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1997

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