Seiko Cal. 6615 - 307

Released in 1975, the Cal. 6615 with design code 307 was part of Seiko's domestic market collection. Powered by the 6615 caliber with 28j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-ee9b8db0fa1c]

Also known as: Shogun, UFO

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

11.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

30m

Dial Color

White

Jewels

28j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1975

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