Seiko Cal. 3857 - 805

The Seiko 3857-805 represents an important milestone in Seiko's 1971 lineup. Powered by the 3857 caliber with 36j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-2bd1041e2595]

Also known as: Turtle, Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

45mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

70m

Dial Color

Silver

Jewels

36j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1971

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