Seiko Cal. 3857 - 748

The Seiko 3857-748 represents an important milestone in Seiko's 1981 lineup. It features a Black dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-cb2c5bbfe2da]

Also known as: Flighty

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

11.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

180m

Dial Color

Black

Jewels

25j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1981

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