Seiko Cal. 6620 - 258

The Seiko 6620-258 represents an important milestone in Seiko's 1968 lineup. It features a White dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-3b2955e34570]

Also known as: Silverwave

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

40m

Dial Color

White

Jewels

28j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1968

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