Seiko Cal. 6658 - 715

The 6658-715 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6658 caliber with 26j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-c0681933f8ea]

Also known as: Bullhead

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

8.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1991

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