Seiko Cal. 6656 - 452

The Seiko 6656-452 represents an important milestone in Seiko's 1965 lineup. It features a Black dial protected by a Acrylic crystal and offers 160m of water resistance. [seikata-wm-4301110faeba]

Also known as: Bellmatic

Specifications

Movement

Solar

Case Material

Titanium

Case Width

35mm

Case Thickness

14.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Black

Jewels

21j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1965

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