Seiko Cal. 6620 - 412

The 6620-412 is a sought-after Spring Drive piece from Seiko's golden era. With its 18mm lug width and 12.5mm profile, it sits comfortably on most wrists. [seikata-wm-0ccb468cdadd]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

12.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Green

Jewels

36j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1975

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