Seiko Cal. 6621 - 536

The 6621-536 is a sought-after Spring Drive piece from Seiko's golden era. The Bidirectional bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-bb291dc11c4e]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

14.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Champagne

Jewels

35j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1971

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