Seiko Cal. 6655 - 693

This Hand-Winding model from 1970 features a 37mm Gold-Plated case. Powered by the 6655 caliber with 23j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-ffec2ac0f381]

Also known as: Bellmatic, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

11.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Cream

Jewels

23j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1970

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