Seiko Cal. 4487 - 991

Seiko 4487-991

The 4487-991 is a sought-after Automatic piece from Seiko's golden era. It features a Navy dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-4f9a0c0c24aa]

Also known as: Turtle, Baby Tuna

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
41mm
Case Thickness
9.0mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
100m
Dial Color
Navy
Jewels
18j
Frequency
36,000 bph
Power Reserve
57 hours
Year
1996

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