Seiko Cal. 6635 - 305

This Spring Drive model from 1965 features a 46mm Two-Tone case. It features a Burgundy dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-23ffb632809e]

Also known as: Monster, World Timer

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

11.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Burgundy

Jewels

24j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1965

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