Seiko Cal. 6140 - 106

The Seiko 6140-106 represents an important milestone in Seiko's 1966 lineup. Powered by the 6140 caliber with 33j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-0760fec142c2]

Also known as: Monster, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

9.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1966

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