Seiko Cal. 6660 - 306

This Automatic model from 1965 features a 44mm Two-Tone case. It features a White dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-5af004086a5f]

Also known as: Tuna, UFO

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

44mm

Case Thickness

10.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

White

Jewels

31j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1965

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