Seiko Cal. 6140 - 657

The 6140-657 is a sought-after Solar piece from Seiko's golden era. With its 18mm lug width and 11.5mm profile, it sits comfortably on most wrists. [seikata-wm-fb8eae71baa0]

Also known as: Turtle, Rally

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

36mm

Case Thickness

11.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Navy

Jewels

18j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1987

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