Seiko Cal. 6610 - 378

Released in 1978, the Cal. 6610 with design code 378 was part of Seiko's domestic market collection. The Fixed bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-2ea429df5e38]

Also known as: Shogun, Emperor

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

11.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

40m

Dial Color

Black

Jewels

17j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1978

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