Seiko Cal. 6355 - 681

The Seiko 6355-681 represents an important milestone in Seiko's 1970 lineup. It features a Silver dial protected by a Sapphire crystal and offers 70m of water resistance. [seikata-wm-df50a4f92d1a]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

13.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

70m

Dial Color

Silver

Jewels

20j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1970

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