Seiko Cal. 4537 - 641

Seiko 4537-641

Released in 1999, the Cal. 4537 with design code 641 was part of Seiko's domestic market collection. It features a Silver dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-a93712e5e8ed]

Also known as: UFO, Arnie

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
11.0mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
80m
Dial Color
Silver
Jewels
34j
Frequency
36,000 bph
Power Reserve
61 hours
Year
1999

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