Seiko Cal. 5654 - 700

This Spring Drive model from 1969 features a 37mm PVD Black case. It features a Black dial protected by a Acrylic crystal and offers 80m of water resistance. [seikata-wm-714d18ea1433]

Also known as: Sumo, Helmet

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Black

Jewels

17j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1969

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