Seiko Cal. 3893 - 270

This Hand-Winding model from 1977 features a 42mm Two-Tone case. Powered by the 3893 caliber with 21j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-e8fb4e6a7a1a]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

8.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Navy

Jewels

21j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1977

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