Seiko Cal. 5664 - 726

The Seiko 5664-726 represents an important milestone in Seiko's 1980 lineup. With its 22mm lug width and 15.2mm profile, it sits comfortably on most wrists. [seikata-wm-78f1e6a12042]

Also known as: Sea Horse

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

44mm

Case Thickness

15.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Navy

Jewels

35j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1980

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