Seiko Cal. 6658 - 305

The Seiko 6658-305 represents an important milestone in Seiko's 1985 lineup. Powered by the 6658 caliber with 36j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-256238379ac3]

Also known as: Helmet, Flighty

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

8.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1985

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