Seiko Cal. 4550 - 670

The Seiko 4550-670 represents an important milestone in Seiko's 1978 lineup. The Coin-Edge bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-4d4e870845f3]

Also known as: Baby Tuna, Arnie

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

44mm

Case Thickness

14.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Black

Jewels

30j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1978

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