Seiko Cal. 6616 - 251

The 6616-251 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6616 caliber with 21j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-7362dd1253b4]

Also known as: Helmet, Emperor

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

36mm

Case Thickness

9.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Cream

Jewels

21j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1987

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