Seiko Cal. 5665 - 318

The 5665-318 is a sought-after Spring Drive piece from Seiko's golden era. With its 21mm lug width and 14.2mm profile, it sits comfortably on most wrists. [seikata-wm-b05ec6b23716]

Also known as: Bellmatic, World Timer

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

14.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

White

Jewels

18j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1998

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