Seiko Cal. 6616 - 764

The 6616-764 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6616 caliber with 28j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-742af421ee52]

Also known as: Panda, Helmet

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

10.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

100m

Dial Color

Silver

Jewels

28j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1965

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