Seiko Cal. 6181 - 320

This Automatic model from 1976 features a 46mm Two-Tone case. Powered by the 6181 caliber with 29j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-0cf99f85ea0a]

Also known as: Monster, Navigator

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

46mm

Case Thickness

9.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Burgundy

Jewels

29j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1976

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