Seiko Cal. 4491 - 750

Seiko 4491-750

The 4491-750 is a sought-after Automatic piece from Seiko's golden era. The Coin-Edge bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-4a8594c50e52]

Also known as: World Timer, Baby Tuna

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
43mm
Case Thickness
8.9mm
Lug Width
21mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
60m
Dial Color
Cream
Jewels
20j
Frequency
21,600 bph
Power Reserve
71 hours
Year
1987

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