Seiko Cal. 4540 - 407

Seiko 4540-407

The 4540-407 is a sought-after Quartz piece from Seiko's golden era. It features a Black dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-fc0a58fae859]

Specifications

Movement
Quartz
Case Material
Two-Tone
Case Width
37mm
Case Thickness
14.9mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
180m
Dial Color
Black
Jewels
17j
Frequency
28,800 bph
Power Reserve
55 hours
Year
1979

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