Seiko Cal. 6318 - 640

This Solar model from 1973 features a 42mm Two-Tone case. With its 20mm lug width and 10.5mm profile, it sits comfortably on most wrists. [seikata-wm-a1025a7bb8fd]

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

42mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Champagne

Jewels

21j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1973

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