Seiko Cal. 5661 - 621

The 5661-621 is a sought-after Spring Drive piece from Seiko's golden era. It features a Champagne dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-a85d6db0b0c4]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

10.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Champagne

Jewels

30j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1971

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