Seiko Cal. 3829 - 658

This Spring Drive model from 1971 features a 37mm Two-Tone case. It features a Green dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-3d9104893ea4]

Also known as: UFO, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

14.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Green

Jewels

31j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1971

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