Seiko Cal. 5618 - 597

Seiko 5618-597

The 5618-597 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5618 caliber with 30j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-6ce18e1b8e00]

Also known as: Helmet

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
34mm
Case Thickness
9.7mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
70m
Dial Color
Silver
Jewels
30j
Frequency
36,000 bph
Power Reserve
54 hours
Year
1970

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seikata-wm-6ce18e1b8e00