Seiko Cal. 6610 - 487

The 6610-487 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6610 caliber with 31j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-ec2594a31dd8]

Also known as: Sumo, Crown

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

9.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

160m

Dial Color

Navy

Jewels

31j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1993

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