Seiko Cal. 3827 - 366

The Seiko 3827-366 represents an important milestone in Seiko's 1985 lineup. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-06467d601628]

Also known as: Sumo, Crown

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

13.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Black

Jewels

25j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1985

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