Seiko Cal. 6337 - 693

Seiko 6337-693

The Seiko 6337-693 represents an important milestone in Seiko's 1985 lineup. Powered by the 6337 caliber with 20j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-85ad4d7edb45]

Also known as: Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
46mm
Case Thickness
15.2mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
50m
Dial Color
Silver
Jewels
20j
Frequency
28,800 bph
Power Reserve
66 hours
Year
1985

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