Seiko Cal. 3888 - 679

Released in 1970, the Cal. 3888 with design code 679 was part of Seiko's domestic market collection. It features a Black dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-a4ec4a43e385]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

44mm

Case Thickness

9.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Black

Jewels

29j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1970

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