Seiko Cal. 5616 - 421

The Seiko 5616-421 represents an important milestone in Seiko's 1969 lineup. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-7d6e9bf7c097]

Also known as: Goldfeather

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Navy

Jewels

36j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1969

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