Seiko Cal. 6655 - 540

The 6655-540 is a sought-after Spring Drive piece from Seiko's golden era. The Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-faf973ce244d]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

14.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1987

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