Seiko Cal. 5612 - 641

The 5612-641 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Champagne dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-3e2f8e063769]

Also known as: Sumo, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

44mm

Case Thickness

15.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Champagne

Jewels

33j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1997

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