Seiko Cal. 3825 - 765

The Seiko 3825-765 represents an important milestone in Seiko's 1975 lineup. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-97be496a0b38]

Also known as: Sumo, Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

10.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Black

Jewels

23j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1975

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