Seiko Cal. 4487 - 198

This Spring Drive model from 1988 features a 44mm Titanium case. It features a Navy dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-1daf8ae964e8]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

44mm

Case Thickness

10.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

25j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1988

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