Seiko Cal. 5610 - 946

The Seiko 5610-946 represents an important milestone in Seiko's 1973 lineup. The Inner Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-db2cdedec7b8]

Also known as: Tuna, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

14.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Black

Jewels

32j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1973

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