Seiko Cal. 6621 - 150

Released in 1988, the Cal. 6621 with design code 150 was part of Seiko's domestic market collection. It features a Navy dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-95c5bb16d31b]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

9.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Navy

Jewels

24j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1988

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