Seiko Cal. 5690 - 978

The 5690-978 is a sought-after Spring Drive piece from Seiko's golden era. It features a Navy dial protected by a Acrylic crystal and offers 110m of water resistance. [seikata-wm-5afe71ff6ed8]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

38mm

Case Thickness

14.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

110m

Dial Color

Navy

Jewels

30j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1974

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