Seiko Cal. 6136 - 397

Seiko 6136-397

The 6136-397 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6136 caliber with 25j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-cef7bc0fc511]

Also known as: Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
42mm
Case Thickness
11.2mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
140m
Dial Color
Navy
Jewels
25j
Frequency
36,000 bph
Power Reserve
41 hours
Year
1999

Related Models

seikata-wm-cef7bc0fc511