Seiko Cal. 3839 - 729

This Spring Drive model from 1970 features a 46mm Two-Tone case. With its 20mm lug width and 9.0mm profile, it sits comfortably on most wrists. [seikata-wm-429c461396bc]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

9.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Burgundy

Jewels

19j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1970

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