Seiko Cal. 5621 - 728

Released in 1966, the Cal. 5621 with design code 728 was part of Seiko's domestic market collection. It features a Burgundy dial protected by a Hardlex crystal and offers 190m of water resistance. [seikata-wm-fdf16de9b5b0]

Also known as: Turtle, Golden Tuna

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

11.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Burgundy

Jewels

32j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1966

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