Seiko Cal. 6610 - 402

The 6610-402 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6610 caliber with 35j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-bfe26b74bd85]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

14.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

180m

Dial Color

Silver

Jewels

35j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1966

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