Seiko Cal. 3810 - 139

The 3810-139 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 70m of water resistance. [seikata-wm-d7dcfbaa8636]

Also known as: Sumo, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

9.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1995

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