Seiko Cal. 4548 - 690

The 4548-690 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4548 caliber with 20j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-538699dfb41f]

Also known as: Tuna, Crown

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

9.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

180m

Dial Color

Champagne

Jewels

20j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1988

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