Seiko Cal. 6616 - 178

The 6616-178 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6616 caliber with 36j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-198cf983d5e9]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

15.2mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Green

Jewels

36j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1992

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