Seiko Cal. 3887 - 498

The Seiko 3887-498 represents an important milestone in Seiko's 1976 lineup. It features a Navy dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-f260caf2e8e8]

Also known as: Sumo, Navigator

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

34mm

Case Thickness

12.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Navy

Jewels

22j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1976

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