Seiko Cal. 3861 - 866

The 3861-866 is a sought-after Automatic piece from Seiko's golden era. It features a Silver dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-15848d503037]

Also known as: Navigator

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

39mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Silver

Jewels

19j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1967

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