Seiko Cal. 6658 - 109

The Seiko 6658-109 represents an important milestone in Seiko's 1974 lineup. Powered by the 6658 caliber with 30j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-c9827ad3fc37]

Also known as: Crown

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

45mm

Case Thickness

10.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Green

Jewels

30j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1974

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