Seiko Cal. 6615 - 242

The Seiko 6615-242 represents an important milestone in Seiko's 1965 lineup. Powered by the 6615 caliber with 18j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-98ca3ed21555]

Also known as: Bellmatic, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

12.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

150m

Dial Color

White

Jewels

18j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1965

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