Seiko Cal. 5621 - 545

Released in 1966, the Cal. 5621 with design code 545 was part of Seiko's domestic market collection. The Coin-Edge bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-3254efc004ba]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

39mm

Case Thickness

11.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1966

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