Seiko Cal. 3857 - 979

Released in 1999, the Cal. 3857 with design code 979 was part of Seiko's domestic market collection. It features a Blue Sunburst dial protected by a Mineral crystal and offers 60m of water resistance. [seikata-wm-cd6ae04d42fd]

Also known as: Tuna, Golden Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

11.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1999

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