Seiko Cal. 7135 - 637

The Seiko 7135-637 represents an important milestone in Seiko's 1971 lineup. The Fixed bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-fb331b56c7f6]

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

43mm

Case Thickness

11.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

100m

Dial Color

Silver

Jewels

25j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1971

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