Seiko Cal. 3810 - 391

The Seiko 3810-391 represents an important milestone in Seiko's 1986 lineup. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-1b7cd4dff084]

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

13.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Navy

Jewels

34j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1986

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