Seiko Cal. 3861 - 391

Released in 1972, the Cal. 3861 with design code 391 was part of Seiko's domestic market collection. It features a White dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-48ba38fdf913]

Also known as: World Timer

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

14.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

100m

Dial Color

White

Jewels

24j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1972

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