Seiko Cal. 4548 - 687

The 4548-687 is a sought-after Spring Drive piece from Seiko's golden era. It features a Navy dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-28f81c46eb5f]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

36mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

160m

Dial Color

Navy

Jewels

32j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1967

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