Seiko Cal. 6615 - 646

The Seiko 6615-646 represents an important milestone in Seiko's 1968 lineup. Powered by the 6615 caliber with 33j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-077d4c59b7b0]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

8.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

130m

Dial Color

Cream

Jewels

33j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1968

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