Seiko Cal. 3857 - 156

This Automatic model from 1985 features a 40mm Titanium case. Powered by the 3857 caliber with 32j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-c2ff5358c54d]

Also known as: Bellmatic

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

40mm

Case Thickness

9.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1985

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