Seiko Cal. 3857 - 662

The Seiko 3857-662 represents an important milestone in Seiko's 1966 lineup. Powered by the 3857 caliber with 25j jewels beating at 36,000 bph, it delivers a 45 hours power reserve. [seikata-wm-c7ad3d8ee810]

Also known as: Sumo, Arnie

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

42mm

Case Thickness

11.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

White

Jewels

25j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1966

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