Seiko Cal. 3854 - 397

This Automatic model from 1969 features a 41mm Two-Tone case. Powered by the 3854 caliber with 35j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-2305d53e363d]

Also known as: Monster

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

70m

Dial Color

Black

Jewels

35j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1969

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