Seiko Cal. 5631 - 825

The Seiko 5631-825 represents an important milestone in Seiko's 1981 lineup. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-b592f535fab2]

Also known as: Sea Horse

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

41mm

Case Thickness

13.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Silver

Jewels

35j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1981

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