Seiko Cal. 3865 - 556

The Seiko 3865-556 represents an important milestone in Seiko's 1971 lineup. It features a White dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-7729eaf31f5e]

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

36mm

Case Thickness

8.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

White

Jewels

21j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1971

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