Seiko Cal. 4457 - 620

Released in 1969, the Cal. 4457 with design code 620 was part of Seiko's domestic market collection. It features a Green dial protected by a Mineral crystal and offers 60m of water resistance. [seikata-wm-4cab03871848]

Also known as: Sportsmatic

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

38mm

Case Thickness

14.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Green

Jewels

20j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1969

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