Seiko Cal. 5646 - 718

Released in 1970, the Cal. 5646 with design code 718 was part of Seiko's domestic market collection. It features a Green dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-3c9941ee4133]

Also known as: Bellmatic, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

9.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

150m

Dial Color

Green

Jewels

36j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1970

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