Seiko Cal. 6311 - 660

The 6311-660 is a sought-after Hand-Winding piece from Seiko's golden era. With its 18mm lug width and 8.1mm profile, it sits comfortably on most wrists. [seikata-wm-fbb96115bb46]

Also known as: Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

44mm

Case Thickness

8.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Silver

Jewels

23j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1978

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