Seiko Cal. 6616 - 765

This Hand-Winding model from 1966 features a 41mm Gold-Plated case. It features a Black dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-fbffae70b40d]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

11.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

110m

Dial Color

Black

Jewels

33j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1966

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