Seiko Cal. 0731 - 738

Seiko 0731-738

The 0731-738 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0731 caliber with 31j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-470e7a31e43c]

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
45mm
Case Thickness
13.7mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
60m
Dial Color
Champagne
Jewels
31j
Frequency
28,800 bph
Power Reserve
68 hours
Year
1980

Related Models

seikata-wm-470e7a31e43c