Seiko Cal. 3888 - 631

The Seiko 3888-631 represents an important milestone in Seiko's 1997 lineup. It features a Navy dial protected by a Sapphire crystal and offers 150m of water resistance. [seikata-wm-d36ee0becaef]

Also known as: Bullhead, Flighty

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

45mm

Case Thickness

9.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Navy

Jewels

29j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1997

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