Seiko Cal. 4448 - 650

This Quartz model from 1967 features a 46mm Two-Tone case. The Coin-Edge bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-900abc30bc62]

Also known as: Tuna, Helmet

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

46mm

Case Thickness

13.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Navy

Jewels

24j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1967

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