Seiko Cal. 0740 - 657

The 0740-657 is a sought-after Hand-Winding piece from Seiko's golden era. With its 18mm lug width and 12.6mm profile, it sits comfortably on most wrists. [seikata-wm-26570ed80947]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

38mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Navy

Jewels

26j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1985

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