Seiko Cal. 5665 - 181

Released in 1971, the Cal. 5665 with design code 181 was part of Seiko's domestic market collection. With its 18mm lug width and 14.7mm profile, it sits comfortably on most wrists. [seikata-wm-d0cf7aba941b]

Also known as: Bellmatic, Crown

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

14.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

70m

Dial Color

Burgundy

Jewels

26j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1971

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