Seiko Cal. 6123 - 640

The Seiko 6123-640 represents an important milestone in Seiko's 1979 lineup. The Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-4d936e22424a]

Also known as: Silverwave, Golden Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

40mm

Case Thickness

13.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

150m

Dial Color

Green

Jewels

21j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1979

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