Seiko Cal. 6121 - 504

The Seiko 6121-504 represents an important milestone in Seiko's 1968 lineup. With its 20mm lug width and 8.7mm profile, it sits comfortably on most wrists. [seikata-wm-192e59595ad7]

Also known as: Sea Horse, Crown

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

8.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Green

Jewels

26j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1968

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