Seiko Cal. 4540 - 379

Seiko 4540-379

The 4540-379 is a sought-after Automatic piece from Seiko's golden era. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-eaa755b435ca]

Also known as: Bullhead, Navigator

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
37mm
Case Thickness
15.2mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
100m
Dial Color
Navy
Jewels
30j
Frequency
28,800 bph
Power Reserve
62 hours
Year
1978

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