Seiko Cal. 6397 - 723

This Quartz model from 1990 features a 36mm Titanium case. Powered by the 6397 caliber with 20j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-3181b03ddcbc]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

36mm

Case Thickness

8.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

140m

Dial Color

Champagne

Jewels

20j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1990

Related Models

• Seiko 0723-635
• Seiko 7023-325
• Seiko 7183-648
• Seiko 6178-758
• Seiko 6193-517
• Seiko 5259-746
• Seiko 5664-465
• Seiko 5278-401
• Seiko 5689-973
• Seiko 6381-373
• Seiko 7019-232
• Seiko 4593-403