Seiko Cal. 5631 - 766

The Seiko 5631-766 represents an important milestone in Seiko's 1970 lineup. The Bidirectional bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-f181830db065]

Also known as: Panda

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

14.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Silver

Jewels

24j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1970

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