Seiko Cal. 6645 - 261

This Spring Drive model from 1975 features a 34mm Gold-Plated case. It features a Black dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-32d4bd4d4ee3]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

9.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

170m

Dial Color

Black

Jewels

19j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1975

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