Seiko Cal. 4531 - 787

The Seiko 4531-787 represents an important milestone in Seiko's 1967 lineup. It features a Silver dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-9c5581d09a3f]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

36mm

Case Thickness

11.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Silver

Jewels

23j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1967

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