Seiko Cal. 4538 - 988

Seiko 4538-988

The 4538-988 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4538 caliber with 36j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-5633c8f407f9]

Also known as: Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
36mm
Case Thickness
8.8mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
140m
Dial Color
White
Jewels
36j
Frequency
28,800 bph
Power Reserve
68 hours
Year
1999

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seikata-wm-5633c8f407f9