Seiko Cal. 5254 - 820

The 5254-820 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5254 caliber with 18j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-a664d9303482]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

38mm

Case Thickness

8.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

White

Jewels

18j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1993

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