Seiko Cal. 3888 - 716

The Seiko 3888-716 represents an important milestone in Seiko's 1968 lineup. It features a Black dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-fb7e65e71861]

Also known as: Helmet, Navigator

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

40mm

Case Thickness

9.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Black

Jewels

32j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1968

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