Seiko Cal. 6620 - 857

The Seiko 6620-857 represents an important milestone in Seiko's 1966 lineup. It features a White dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-90c5fad73380]

Also known as: Rally

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

11.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

160m

Dial Color

White

Jewels

25j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1966

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