Seiko Cal. 6635 - 377

The Seiko 6635-377 represents an important milestone in Seiko's 1976 lineup. It features a White dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-ef3ab0b524d2]

Also known as: Pogue, Helmet

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

12.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

White

Jewels

22j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1976

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