Seiko Cal. 6660 - 236

The Seiko 6660-236 represents an important milestone in Seiko's 1969 lineup. It features a Silver dial protected by a Acrylic crystal and offers 160m of water resistance. [seikata-wm-3866b88604ed]

Also known as: Sumo, Bullhead

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

15.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

160m

Dial Color

Silver

Jewels

30j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1969

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