Seiko Cal. 4540 - 648

The 4540-648 is a sought-after Automatic piece from Seiko's golden era. It features a Silver dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-889a0bd60af7]

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

44mm

Case Thickness

13.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Silver

Jewels

30j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1984

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