Seiko Cal. 6653 - 310

Released in 1965, the Cal. 6653 with design code 310 was part of Seiko's domestic market collection. It features a Champagne dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-12b7d6af7ca5]

Also known as: Helmet, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

13.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Champagne

Jewels

25j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1965

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