Seiko Cal. 6615 - 205

The Seiko 6615-205 represents an important milestone in Seiko's 1971 lineup. Powered by the 6615 caliber with 21j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-35eb6aab9f1f]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

14.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

White

Jewels

21j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1971

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