Seiko Cal. 6658 - 915

The 6658-915 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6658 caliber with 30j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-238fe46369ec]

Also known as: Helmet, Flighty

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

45mm

Case Thickness

8.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Navy

Jewels

30j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1985

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