Seiko Cal. 5621 - 306

The Seiko 5621-306 represents an important milestone in Seiko's 1973 lineup. It features a Silver dial protected by a Acrylic crystal and offers 30m of water resistance. [seikata-wm-426288a25e02]

Also known as: Crown, Baby Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

8.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

30m

Dial Color

Silver

Jewels

36j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1973

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