Seiko Cal. 4561 - 261

The 4561-261 is a sought-after Spring Drive piece from Seiko's golden era. It features a Silver dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-2f939d81df47]

Also known as: Sumo, UFO

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

12.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

30m

Dial Color

Silver

Jewels

29j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1966

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