Seiko Cal. 3810 - 536

The 3810-536 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3810 caliber with 20j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-faeb6ee72eeb]

Also known as: Sumo, Crown

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

34mm

Case Thickness

13.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

20j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1974

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