Seiko Cal. 6218 - 221

Released in 1968, the Cal. 6218 with design code 221 was part of Seiko's domestic market collection. It features a Green dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-f24794ea1e33]

Also known as: UFO, World Timer

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

10.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Green

Jewels

24j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1968

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