Seiko Cal. 5631 - 695

The 5631-695 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-fb972bf93cde]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

38mm

Case Thickness

9.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Black

Jewels

25j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1979

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