Seiko Cal. 6373 - 133

The Seiko 6373-133 represents an important milestone in Seiko's 1965 lineup. Powered by the 6373 caliber with 21j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-b7e5fb457d29]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

38mm

Case Thickness

9.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

90m

Dial Color

Black

Jewels

21j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1965

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