Seiko Cal. 6654 - 739

The 6654-739 is a sought-after Spring Drive piece from Seiko's golden era. With its 20mm lug width and 9.5mm profile, it sits comfortably on most wrists. [seikata-wm-b6bdd9e6bfc5]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

9.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

170m

Dial Color

Navy

Jewels

31j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1987

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