Seiko Cal. 3878 - 797

This Hand-Winding model from 1989 features a 35mm Two-Tone case. Powered by the 3878 caliber with 30j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-ce4f6c38f48f]

Also known as: UFO, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

35mm

Case Thickness

8.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Green

Jewels

30j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1989

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