Seiko Cal. 3857 - 523

Released in 1979, the Cal. 3857 with design code 523 was part of Seiko's domestic market collection. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-1c7a25eb44fc]

Also known as: Tuna, Crown

Specifications

Movement

Solar

Case Material

Titanium

Case Width

35mm

Case Thickness

12.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1979

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