Seiko Cal. 6636 - 958

This Quartz model from 1971 features a 34mm Two-Tone case. The Coin-Edge bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-6a7464a216c1]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

34mm

Case Thickness

10.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Silver

Jewels

31j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1971

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