Seiko Cal. 6620 - 420

The Seiko 6620-420 represents an important milestone in Seiko's 1971 lineup. It features a Silver dial protected by a Mineral crystal and offers 170m of water resistance. [seikata-wm-e809b9df1296]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

14.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Silver

Jewels

30j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1971

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